SMS marketing for ecommerce works best as a retention system: short, timely texts at the moments that decide whether a first-time buyer comes back, such as an abandoned basket, a restock, a delivery update or a replenishment date. Build a few automated flows around those moments first, add promotions on top, and use SMS marketing features such as tracked short links, personalisation and one-click opt-out to keep every message measurable and welcome.
Retention is worth the effort. Harvard Business Review notes that acquiring a new customer can cost five to 25 times more than keeping an existing one. This guide covers the flows, segments, message examples and measurement that turn one order into several.
What does SMS do well for online stores?
SMS is not a replacement for email, push or paid media. Its strength is immediacy: a text lands on the lock screen, so it suits moments where timing changes the outcome. Typical ecommerce moments include:
- A basket is abandoned and your best chance to recover it is within hours, not days.
- An item comes back in stock and the first buyers to hear about it get it.
- A delivery is running late and a proactive update prevents a support ticket or a refund.
- A first-time buyer is still deciding whether you are reliable enough to buy from again.
Benchmarks from the big ecommerce platforms point the same way. Klaviyo’s 2026 SMS benchmarks report that automated SMS flows make up 7.6% of sends but drive 45.2% of SMS revenue. Omnisend’s 2026 ecommerce marketing report found automated SMS earned an average of $0.74 per send in 2025, against $0.15 for campaigns. Flows beat blasts.
How do you collect consent without hurting trust?
People tolerate less in their messaging inbox than in email, so your retention gains depend on keeping the channel clean.
- Be specific at sign-up. Say what they will get (offers, order updates, back-in-stock alerts, loyalty points), roughly how often, and how to stop.
- Separate marketing from order updates. Delivery notifications are service messages; promotions need marketing consent. In the UK, the ICO’s PECR guidance applies the same electronic marketing rule to texts as to emails, including the soft opt-in for existing customers who were given a chance to opt out.
- Include an opt-out every time. Keep it short and predictable, such as “Reply STOP to opt out”. Offer a preference option so people can reduce frequency instead of leaving.
- Register your sender where required. In the United States, marketing texts from a local number need 10DLC registration; our 10DLC, short code and toll-free comparison explains the options.
Our SMS marketing compliance guide covers consent records and automated opt-outs in more detail.
Which customer moments should your SMS programme cover?
When SMS underperforms, it is usually because messages follow the internal promo calendar rather than the customer. List your highest-value moments, assign one flow to each, and let calendar promotions sit on top.
The first seven days after a first order
This is where trust is won or lost. Focus on clarity: confirmation, dispatch, tracking and an easy way to get help. Save the coupons for later.
The day a basket is abandoned
Baymard Institute’s cart abandonment research puts the documented average at 70.22% across 50 studies (updated September 2025). The top reasons shoppers give are extra costs (40%), slow delivery (20%) and not trusting the site with card details (19%). Your messages should answer those reasons, not just repeat “you forgot something”.
Any time delivery expectations are at risk
A 2022 Ipsos study for Octopia of shoppers in France, Spain and Germany found 85% say a poor delivery experience would stop them ordering from that retailer again. Post-purchase texts protect the next order.
Which segments should ecommerce teams start with?
You do not need 40 segments. You need a few that change what you send and when:
| Segment | Goal | What to send |
|---|---|---|
| First-time buyers | Build confidence | Order and delivery updates, help options |
| Repeat buyers | Raise frequency and basket size | Replenishment reminders, related categories |
| High-intent browsers | Move from interest to purchase | Fit guides, restock options, comparisons |
| VIP customers | Reward loyalty | Early access, new drops, birthday offers |
| Discount-driven buyers | Limit margin erosion | Fewer, predictable promotions |
Which SMS flows and campaigns win repeat customers?
The examples below are templates: text in square brackets is replaced by your own content. Each fits in one GSM-7 SMS when the brackets are filled with short values.
Welcome message
Confirm what they signed up for and ask one question that improves relevance.
[Brand]: You’re in! Early access and restock alerts, max 4 texts a month. What do you shop most? Reply 1 shoes, 2 denim, 3 skincare. STOP to opt out
If you ask a question, act on the answer. Two-way SMS is a cheap way to learn what to send next.
Abandoned basket flow
A sensible three-step sequence:
- 30 to 60 minutes after: help them resume.
[Brand]: Your basket is saved. Finish checkout here: [short link] Reply STOP to opt out
- 4 to 8 hours after: answer the common objections.
[Brand]: Delivery to [city] takes [2-3] days and returns are free for 30 days. Your basket: [short link] Reply STOP to opt out
- 20 to 28 hours after: a final, helpful nudge.
[Brand]: Still deciding? Reply with any question and our team will help. Basket: [short link] Reply STOP to opt out
Be careful with discounts. They recover baskets but can teach people to abandon on purpose. Reserve them for price-sensitive segments or high-margin baskets.
Back-in-stock and new product alerts
Restock alerts are customer-requested, so they rarely feel intrusive. Name the variant and link straight to it.
[Brand]: Good news, [product] in size [M] is back. Grab it before it goes: [short link] Reply STOP to opt out
New-product announcements work the same way for customers who bought in that category: a short line, one link to a dedicated landing page, early access rather than a discount.
Order and delivery updates
Cover order confirmation, dispatch with tracking, out for delivery, delivered, and any delay before the customer has to ask.
[Brand]: Update on order [1234]. Carrier delays mean delivery is now expected [Thu 12 Nov]. Reply HELP for options.
This is a service message, so it does not need a marketing opt-out line, but it must never carry a promotion.
Review and feedback requests
Ask after delivery and a reasonable use period. Keep it one tap:
[Brand]: How was your [product]? Reply 1 not good, 2 okay, 3 great. Reply STOP to opt out
Send the review link to people who reply 3, and route 1s and 2s to support. You protect your ratings and catch problems early. The same pattern works for short surveys linked from a text.
Replenishment and win-back
Time win-back messages to what customers bought, not a random 45-day timer. For replenishable products, text around the expected reorder date with a one-tap link. For other categories, offer first pick of new arrivals.
[Brand]: Running low on [product]? Reorder in two taps: [short link] Reply STOP to opt out
Birthdays and time-limited VIP offers
A birthday text with a small, genuine reward builds loyalty if you collected the date with consent. Time-limited offers for VIPs work when they are rare and truly exclusive; used weekly, they train everyone to wait.
[Brand]: Happy birthday, [Name]! Enjoy 15% off anything this week with code [BDAY15]. [short link] Reply STOP to opt out
What makes ecommerce texts perform better?
- One message, one job. Several offers in one text create indecision.
- Trusted links. Use consistent branded short links so customers recognise them.
- Earned personalisation. Reference a category they bought or a size they saved, not every page they viewed.
- Frequency caps. Limit promotions per person per week, especially for people who are not clicking.
- Local time. Send in the recipient’s time zone and respect quiet hours.
- Character discipline. An emoji switches encoding to Unicode and cuts a part to 70 characters, which can double the cost. Our guide to SMS pricing and character limits explains why.
How do you prove SMS drives repeat purchases?
Clicks are easy to track and easy to overvalue. Track three layers:
- Health: delivery rate and failure reasons from delivery reports, unsubscribe rate, and opt-in source quality.
- Engagement: click-through rate by segment and reply rate for two-way flows.
- Retention: repeat purchase rate for SMS subscribers against non-subscribers, time to second order, and revenue per recipient.
For a clean answer on incremental lift, run holdout tests: keep a small share of the audience out of a campaign and compare outcomes. It stops SMS taking credit for orders that would have happened anyway.
What deliverability basics should ecommerce teams know?
- Send what people agreed to. If the opt-in promised order updates and you send daily promotions, expect complaints and filtering.
- Use the right sender per country. Some countries favour alphanumeric sender IDs, others use numbers, and many require pre-registration. “One sender everywhere” rarely works.
- Avoid spam patterns. Excess capitals, several links, repetitive discount wording and vague sender identity all attract filters.
- Clean your list. Remove numbers that repeatedly fail so you stop paying for undeliverable messages.
What does a 30-day SMS plan look like?
- Week 1, foundations: audit opt-in wording, add opt-out lines to every marketing template, create the five core segments.
- Week 2, high-impact flows: abandoned basket, back-in-stock, and order and delivery updates.
- Week 3, retention: review requests, replenishment or win-back, and a welcome preference question.
- Week 4, relevance and measurement: frequency caps, one holdout test, and a review of unsubscribe spikes by segment.
For seasonal peaks, our Black Friday SMS templates give ready-made campaign copy.
How SMS.to supports ecommerce SMS
SMS.to’s Shopify SMS integration connects your store so you can send abandoned-cart reminders, order-update alerts and back-in-stock notifications, with customer and order fields kept in sync. Stores on Magento, PrestaShop, OpenCart or Zen Cart can use SMS.to’s plugins, and custom stacks can call the API directly.
On the campaign side, the SMS.to platform gives you tracked short links with click-through reporting for A/B tests, personalised messages with up to five dynamic tags, two-way numbers for replies, and a one-click opt-out link. Pricing is pay as you go on the pricing page, and our team advises on sender IDs and registration in each market you sell to.
FAQs
How often should an online store send marketing texts?
Most stores do well with a few promotional texts a month plus automated flows. Watch unsubscribe rates after each campaign; a spike means you are over-sending or under-segmenting.
Do order and delivery texts need marketing consent?
Pure service messages generally do not, but they must not contain promotions. Check the rules in each country you sell to.
What is the best SMS flow to start with?
Abandoned basket and order updates usually deliver the quickest results, because they reach people who already intended to buy.
Can I use SMS.to with Shopify?
Yes. SMS.to offers a Shopify integration for abandoned-cart reminders, order updates and stock notifications.
Planning SMS for your store across several countries? Talk to our sales team about sender IDs, integrations and volume pricing, or create a free account, no credit card needed, to test your first flow.
